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authorNathan Binkert <nate@cvs.openbsd.org>2001-03-18 04:32:46 +0000
committerNathan Binkert <nate@cvs.openbsd.org>2001-03-18 04:32:46 +0000
commitef2d578c271a786653e241b072dc56250ca1430d (patch)
treeb318f8acf09096eea9445db0dedcafc8eafc26f0 /sys/dev/rasops/rasops32.c
parentf4f01277bc5305a12ccc3f2024dfa89e24335a13 (diff)
Import rasops from NetBSD. This gives improved performance for raster
operations.
Diffstat (limited to 'sys/dev/rasops/rasops32.c')
-rw-r--r--sys/dev/rasops/rasops32.c142
1 files changed, 142 insertions, 0 deletions
diff --git a/sys/dev/rasops/rasops32.c b/sys/dev/rasops/rasops32.c
new file mode 100644
index 00000000000..2df3db2b385
--- /dev/null
+++ b/sys/dev/rasops/rasops32.c
@@ -0,0 +1,142 @@
+/* $OpenBSD: rasops32.c,v 1.1 2001/03/18 04:32:45 nate Exp $ */
+/* $NetBSD: rasops32.c,v 1.7 2000/04/12 14:22:29 pk Exp $ */
+
+/*-
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Andrew Doran.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the NetBSD
+ * Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+//__KERNEL_RCSID(0, "$NetBSD: rasops32.c,v 1.7 2000/04/12 14:22:29 pk Exp $");
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/time.h>
+
+#include <dev/wscons/wsdisplayvar.h>
+#include <dev/wscons/wsconsio.h>
+#include <dev/rasops/rasops.h>
+
+static void rasops32_putchar __P((void *, int, int, u_int, long attr));
+
+/*
+ * Initalize a 'rasops_info' descriptor for this depth.
+ */
+void
+rasops32_init(ri)
+ struct rasops_info *ri;
+{
+
+ if (ri->ri_rnum == 0) {
+ ri->ri_rnum = 8;
+ ri->ri_rpos = 0;
+ ri->ri_gnum = 8;
+ ri->ri_gpos = 8;
+ ri->ri_bnum = 8;
+ ri->ri_bpos = 16;
+ }
+
+ ri->ri_ops.putchar = rasops32_putchar;
+}
+
+/*
+ * Paint a single character.
+ */
+static void
+rasops32_putchar(cookie, row, col, uc, attr)
+ void *cookie;
+ int row, col;
+ u_int uc;
+ long attr;
+{
+ int width, height, cnt, fs, fb, clr[2];
+ struct rasops_info *ri;
+ int32_t *dp, *rp;
+ u_char *fr;
+
+ ri = (struct rasops_info *)cookie;
+
+#ifdef RASOPS_CLIPPING
+ /* Catches 'row < 0' case too */
+ if ((unsigned)row >= (unsigned)ri->ri_rows)
+ return;
+
+ if ((unsigned)col >= (unsigned)ri->ri_cols)
+ return;
+#endif
+
+ rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
+
+ height = ri->ri_font->fontheight;
+ width = ri->ri_font->fontwidth;
+
+ clr[0] = ri->ri_devcmap[(attr >> 16) & 0xf];
+ clr[1] = ri->ri_devcmap[(attr >> 24) & 0xf];
+
+ if (uc == ' ') {
+ while (height--) {
+ dp = rp;
+ DELTA(rp, ri->ri_stride, int32_t *);
+
+ for (cnt = width; cnt; cnt--)
+ *dp++ = clr[0];
+ }
+ } else {
+ uc -= ri->ri_font->firstchar;
+ fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale;
+ fs = ri->ri_font->stride;
+
+ while (height--) {
+ dp = rp;
+ fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) |
+ (fr[0] << 24);
+ fr += fs;
+ DELTA(rp, ri->ri_stride, int32_t *);
+
+ for (cnt = width; cnt; cnt--) {
+ *dp++ = clr[(fb >> 31) & 1];
+ fb <<= 1;
+ }
+ }
+ }
+
+ /* Do underline */
+ if ((attr & 1) != 0) {
+ DELTA(rp, -(ri->ri_stride << 1), int32_t *);
+
+ while (width--)
+ *rp++ = clr[1];
+ }
+}